[INFO] fetching crate rustbook-learning-guide 0.1.0...
[INFO] testing rustbook-learning-guide-0.1.0 against beta-2026-04-21 for beta-1.96-2
[INFO] extracting crate rustbook-learning-guide 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate rustbook-learning-guide 0.1.0
[INFO] removed 0 missing tests
[INFO] finished tweaking crates.io crate rustbook-learning-guide 0.1.0
[INFO] tweaked toml for crates.io crate rustbook-learning-guide 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate rustbook-learning-guide 0.1.0 on toolchain beta-2026-04-21
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rustbook-learning-guide 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2026-04-21" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02610d94390eca5165323828d429625ad35fa971ec3a39a8e95a6d99ffa043f2
[INFO] running `Command { std: "docker" "start" "-a" "02610d94390eca5165323828d429625ad35fa971ec3a39a8e95a6d99ffa043f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02610d94390eca5165323828d429625ad35fa971ec3a39a8e95a6d99ffa043f2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02610d94390eca5165323828d429625ad35fa971ec3a39a8e95a6d99ffa043f2", kill_on_drop: false }`
[INFO] [stdout] 02610d94390eca5165323828d429625ad35fa971ec3a39a8e95a6d99ffa043f2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0fe8f068fc9ea72668a1bdd5d7ee9cc4434ba910528b1e77f19b15f92df0459a
[INFO] running `Command { std: "docker" "start" "-a" "0fe8f068fc9ea72668a1bdd5d7ee9cc4434ba910528b1e77f19b15f92df0459a", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbook-learning-guide v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.91s
[INFO] running `Command { std: "docker" "inspect" "0fe8f068fc9ea72668a1bdd5d7ee9cc4434ba910528b1e77f19b15f92df0459a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fe8f068fc9ea72668a1bdd5d7ee9cc4434ba910528b1e77f19b15f92df0459a", kill_on_drop: false }`
[INFO] [stdout] 0fe8f068fc9ea72668a1bdd5d7ee9cc4434ba910528b1e77f19b15f92df0459a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4508a6b93c906cfe439fea9d9e05ff3e9557defbf1f3661e894f015cf6997ad
[INFO] running `Command { std: "docker" "start" "-a" "f4508a6b93c906cfe439fea9d9e05ff3e9557defbf1f3661e894f015cf6997ad", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustbook-learning-guide v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.84s
[INFO] running `Command { std: "docker" "inspect" "f4508a6b93c906cfe439fea9d9e05ff3e9557defbf1f3661e894f015cf6997ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4508a6b93c906cfe439fea9d9e05ff3e9557defbf1f3661e894f015cf6997ad", kill_on_drop: false }`
[INFO] [stdout] f4508a6b93c906cfe439fea9d9e05ff3e9557defbf1f3661e894f015cf6997ad
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2026-04-21" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c845f55a210f96906667d5ce4db60412db46151c4ea465ebaa3a632351bcc778
[INFO] running `Command { std: "docker" "start" "-a" "c845f55a210f96906667d5ce4db60412db46151c4ea465ebaa3a632351bcc778", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rustbook_learning_guide-f9f8820dbbd0449a)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rustbook_learning_guide-1fc10a9a1993689d)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running tests/integration_tests.rs (/opt/rustwide/target/debug/deps/integration_tests-cfc08a1484952d8d)
[INFO] [stdout] 
[INFO] [stdout] running 4 tests
[INFO] [stdout] test test_greet_function ... ok
[INFO] [stdout] test test_traits_and_generics ... ok
[INFO] [stdout] test test_smart_pointers ... ok
[INFO] [stdout] test test_iterator_functionality ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 4 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests rustbook_learning_guide
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c845f55a210f96906667d5ce4db60412db46151c4ea465ebaa3a632351bcc778", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c845f55a210f96906667d5ce4db60412db46151c4ea465ebaa3a632351bcc778", kill_on_drop: false }`
[INFO] [stdout] c845f55a210f96906667d5ce4db60412db46151c4ea465ebaa3a632351bcc778
